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Patent Searching and Data


Matches 601 - 650 out of 10,953

Document Document Title
WO2004058431A3
A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth (56), a plurality of optional refining hearths, and a plurality of casting molds (58a, 58b) or dir...  
WO/2004/081244A1
The invention relates to a method for refining gold containing metallic impurities. According to said method, the proportion of metal oxides is increased in a targeted manner by annealing the gold at preferably between 450 and 550 °C fo...  
WO/2004/078385A1
An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. ...  
WO/2004/076699A1
A device for heating a metal melt, comprising a container (1) with cover and openings for the supply and removal of melt, wherein sub atmospheric pressure may be created. A rotor is arranged in the form of a hollow rotary body, with a ho...  
WO/2004/074524A1
The present invention discloses a siphon assembly for moving high temperature melts from a first location (1) to a second location (2), comprising, (i) an upleg (3) for receiving molten metal when immersed in a melt at the first location...  
WO/2004/074523A2
A metal melting closed furnace which includes a main chamber (22), a circulation well (28) connected to the main chamber (22) by a communications passageway (32) and a vortex well (84) having an exit outlet for molten metal into the main...  
WO/2004/069450A1
The invention relates to a fire-resistant ceramic gas sink which can be fitted into a wall or the base of a vessel for receiving a metal melt. The gas sink comprises at least one channel extending from the cold side of the gas sink to a ...  
WO/2004/063406A2
The invention relates to a method for producing a metal foam body, according to which a molten material containing gas is prepared and said molten material is left to solidify, thus forming a metal foam body. The aim of the invention is ...  
WO/2004/058431A2
A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth (56), a plurality of optional refining hearths, and a plurality of casting molds (58a, 58b) or dir...  
WO2004028655A3
A method of separating metal particulates form a slurry of liquid metal and metal particulates and salt particulates by filtering the slurry to form a cake of metal and salt particulates with some liquid metal. The cake is broken and liq...  
WO/2004/056505A1
The invention relates to a gas flushing device for metallurgical melting pots, having the following construction: a porous plug is arranged in an upper cylindrical housing at the gas outlet end thereof and in a lower cylindrical housing ...  
WO/2004/057045A1
The invention relates to a rotary device for dispersing a gas in a molten metal. The device comprises a hollow shaft (20) at one end of which is attached a rotor (22). The rotor (22) has a roof (24) and a base (26) which are spaced apart...  
WO/2004/050939A2
Apparatus and methods for plasma-assisted melting are provided. In one embodiment, a plasma-assisted melting method can include: (1) adding a solid to a melting region (505), (2) forming a plasma in a cavity (510) by subjecting a gas to ...  
WO/2004/048622A1
A system and method of separating metal powder from a slurry of liquid metal and metal powder and salt is disclosed in which the slurry is introduced into a first vessel operated in an inert environment when liquid metal is separated fro...  
WO2003041896A3
The invention relates to a method for producing metallic and intermetallic alloy ingots by continuously or quasi-continuously drawing billets out of a cold-wall induction crucible. The invention is characterized in that the alloy materia...  
WO2003034576A3
A circuit for increasing the voltage/current level of a signal to drive a power transistor from a low voltage input. The gate drive circuit comprises a voltage multiplier for increasing the voltage level of a low voltage input signal, a ...  
WO/2004/044578A1
The invention provides a separating vessel (10) suitable for use in the treatment of a mineral sample wherein a molten slag (11) is separated from a molten collector material (12) comprising a container defining an interior cavity (13) f...  
WO/2004/035846A1
A low pollution process for extracting arsenic in vacuum, including: heat and keep the smelting chamber to a temperature of 100-300 °C under the reduced pressure lower than 50 Pa to remove the water vapor and some dust; then heat and ke...  
WO/2004/035873A1
An electrochemical cell for electrochemical reduction of a metal oxide in a solid state is disclosed. The cell includes a molten electrolyte (14), an anode (10) formed from carbon in contact with the electrolyte, a cathode (20) formed at...  
WO/2004/028655A2
A method of separating metal particulates form a slurry of liquid metal and metal particulates and salt particulates by filtering the slurry to form a cake of metal and salt particulates with some liquid metal. The cake is broken and liq...  
WO/2004/029307A1
The invention relates to a rotor, a device, and a method for introducing fluids into a molten bath. Molten baths are often degassed by introducing a liquid. In known trough degassers, rotors are arranged in the flowing melt and are used ...  
WO/2004/029332A2
A method for purifying metal M1 particles manufactured by an electrochemical reduction process, the method comprising the steps of introducing the metal M1 particles into a heat source (13) at a temperature substantially equal to or high...  
WO/2004/029308A1
The invention relates to rear-metal metallurgy and can be used for efficient osmium extraction from copper production waste material. The inventive method consists in pre-distilling organic components in a reducing medium from initial ra...  
WO2003034391A3
A method and system for controlling a voltage used for precharging current-driven elements in a matrix, and a method of manufacturing a device to perform this function. Elements are driven during successive scan cycles, each having a pre...  
WO/2004/020679A1
The invention relates to a device (8) which is used to inject a treatment gas into a molten metal contained in a tank (1) and which is designed to be fixed in one of the walls of said tank. The inventive device comprises at least one inj...  
WO2003064716A3
Filters (18) for filtering molten metals and alloys and method to remove contaminants. Filters (18) may include preferred imaging agents such as tungsten and gandolium, useful for N-ray radiography, X-ray analysis and neutron activation.  
WO/2004/013361A1
A dry method of recovering a platinum group element, comprising charging a substance containing platinum group element to be treated and a copper source material containing copper oxide together with a flux component and a reducing agent...  
WO/2004/013360A1
A salt furnace is receivable within a vessel which contains molten magnesium/magnesium alloy. The salt furnace comprises a body for isolating a salt melt within the salt furnace from molten magnesium/magnesium alloy in the vessel and thr...  
WO2003033749A3
A method and apparatus for establishing and applying a voltage to precharge current-driven elements in a matrix. During ordinary scan cycles, a conduction voltage is sensed while the elements conduct a selected current. One or more such ...  
WO/2004/009857A1
A method of separating components from a metal based composite, the method including the steps of increasing the size of a component to be separated and separating the increased sized component from the other components of the composite.  
WO/2004/005559A1
The invention relates to a method for fractional crystallisation of an at most partially solidified molten metal, in which a layer of at most partially solidified molten metal having an upper surface und a lower surface is divided into a...  
WO/2004/005558A1
The invention relates to a method for fractional crystallisation of an at most partially solidified molten metal. According to the invention a layer of at most partially solidified molten metal to be crystallised is cooled by a layer of ...  
WO2003034388A3
A method and apparatus for predicting current boost levels and applying them to precharge current-driven elements in a matrix, and a method of manufacturing devices for this purpose. Elements are driven during successive scan cycles, eac...  
WO/2004/001078A1
Method and device for purifying a stream of molten metal. A conical chamber that acts a cyclone has been defined in a block of refractory material. The stream to be purified is introduced between the two ends of the conical chamber havin...  
WO/2003/106908A1
A flow inducement or stirring apparatus (500) includes electromagnetic induction apparatus in the form of a generally rectangular box (501) connected to an inclined end wall (502) of a cradle or port (503) of the apparatus 500, being gen...  
WO/2003/106009A1
The invention concerns an electromagnetic device for interfacial fusion and stirring of diphasic systems, in particular for accelerating metallurgical of pyrochemical processes. Said device comprises for example a crucible (2, 28), desig...  
WO2003089676A3
The present invention relates to new compositions of metals and alloys, with variable de gree of carbon (super-)saturation, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique el...  
WO/2003/104502A1
A treatment apparatus (10) includes a liquid reactant metal containment vessel (11) for containing a first liquid reactant metal and isolating the reactant metal from the atmosphere. A release chamber (14) is adapted to receive the first...  
WO2003034385A3
A current driving circuit (264) for use with a display of light emitting elements arranged in rows and columns. The current driving circuit (264) is configured to control the exposure time of column current sources (270) based on the row...  
WO2003034384A3
An Organic light emitting diode (OLED)/polymer OLED (PLED) displays and their operation with a precharge latency. Particularly, precharging operation of such a display device with a precharge switch latency. According to the operation, a...  
WO/2003/102254A1
A method by which tantalum compounds and niobium compounds dissolved in water such as a liquid detergent are insolubilized and recovered. An aqueous solution containing tantalum compounds and/or niobium compounds dissolved therein is reg...  
WO2003057930A8
A method for filtering molten aluminum containing suspended particles using an improved filtration media, the method comprising the steps of providing a source of molten aluminum and providing media having a coating thereon, the coating ...  
WO/2003/095686A1
The invention relates to a device (1) for treating a liquid metal flow. The inventive device comprises a treating ladle (2) consisting of: means of connecting (11, 12, 13, 14) to at least one liquid metal feed chute (15) and to at least ...  
WO2003034387A3
An apparatus for generating and providing a stable reference voltage to a boost regulator that generates a drive voltage for a current source in e.g. an OLED or PLED display device. The apparatus comprises a clamping circuit that is conf...  
WO2002058863A8
A bottom heated holder furnace (10) for containing a supply of molten metal includes a storage vessel (20) having sidewalls (22) and a bottom wall (24) defining a molten metal receiving chamber (26). A furnace insulating layer (32) lines...  
WO/2003/091461A1
A method of introducing a solid particulate reagent into a bath of metallurgical liquid comprises a step of introducing a solid particulate reagent into a main supersonic gas jet. The main supersonic gas jet is directed at the surface of...  
WO/2003/089676A2
The present invention relates to new compositions of metals and alloys, with variable de gree of carbon (super-)saturation, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique el...  
WO/2003/089862A1
The invention relates to electric-arc plasma reactors for producing the melt of refractory, metallic and non-metallic materials and sublimates which have a high viscosity degree and can be used for the cement and chemical industries and ...  
WO2003034386A3
A method and system for controlling a voltage to precharge current-driven elements in a matrix, and a method of manufacturing apparatus therefor. Current is delivered to a matrix connection during a conduction period so that an enabled e...  
WO/2003/076692A1
An electrolytic cell for reducing a metal oxide, such as titania, in a solid state is disclosed. The electrolytic cell includes an anode formed from carbon and a cathode formed at least in part from the metal oxide. The electrolytic cell...  

Matches 601 - 650 out of 10,953